Cenozoic Uplift and Exhumation of the Frontal Cordillera between 30° and 35°S and the Influence of the Subduction Dynamics in the Flat Slab Subduction Context, South Central Andes.

LOSSADA, A.; GIAMBIAGI, L. B.; HOKE, G.; MESCUA, J.; SURIANO, J.; MAZZITELLI, M.

The Evolution of the Chilean-Argentinean Andes

Springer

Año: 2018; p. 387 - 409

This review explores the timing of uplift and exhumation of the FrontalCordillera range in the South Central Andes between 30° and 35° S summing up theavailable published evidence up to present. In this segment of the Andes, theFrontal Cordillera straddles a transition from the Chilean?Pampean flat-slab segmentto a normal subduction segment and exhibits remarkable along-strike variationsin the amount of horizontal shortening, onset of Miocene deformation, andorogenic width, while mean elevations remain steady. None of these variationsseem to correspond, in time or space, to the shift in the subduction dynamics;instead, we propose that they represent the expression of inherited features in thecontinental crust such as the presence of post-Triassic basins or paleo-relief